Although silicon nitride balls have self-lubricating performance, reasonable lubrication matching can further reduce friction and extend bearing life. Different working environments need to select matching lubricants. Mastering lubrication skills is essential to maximize the performance of silicon nitride ball bearings.
For normal temperature and high-speed equipment, low-viscosity synthetic lubricating oil is the best choice. Low-viscosity oil forms a thin and uniform oil film between ceramic balls and steel raceways, reducing high-speed friction heat generation and avoiding oil film rupture.
High-temperature working conditions need high-temperature resistant grease. Conventional lubricating grease will carbonize and deteriorate above 200℃. High-temperature fluorine-containing grease matches silicon nitride balls, keeping stable lubrication effect in high-temperature furnace bearings.
Low-temperature cryogenic equipment adopts low-temperature antifreeze lubricating oil. This lubricant will not solidify at ultra-low temperature, ensuring flexible rotation of bearings. It is widely used in cold storage and liquid nitrogen equipment bearings.
Dry dust environment can use solid lubricant coating. Molybdenum disulfide and graphite coating form a dry lubricating layer on the ball surface, avoiding dust adhesion and reducing dry friction wear.
Avoid acidic and alkaline lubricants. Corrosive lubricants will damage the matching raceway. Neutral lubricants are most suitable for silicon nitride balls to ensure long-term stable friction pair state.
